loop0: detected capacity change from 0 to 4096
------------[ cut here ]------------
kernel BUG at fs/buffer.c:1580!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5312 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:folio_set_bh+0x1dc/0x1e0 fs/buffer.c:1580
Code: 4c 89 e2 e8 a6 bb 94 02 e9 42 ff ff ff e8 dc 3b 6e ff 48 89 df 48 c7 c6 a0 dd de 8b e8 9d b8 d0 fe 90 0f 0b e8 c5 3b 6e ff 90 <0f> 0b 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f
RSP: 0018:ffffc9000dca7938 EFLAGS: 00010293
RAX: ffffffff8257606b RBX: ffffea00004c22c0 RCX: ffff88803789a480
RDX: 0000000000000000 RSI: 0000000000001000 RDI: 0000000000001000
RBP: dffffc0000000000 R08: ffffea00004c22c7 R09: 1ffffd4000098458
R10: dffffc0000000000 R11: fffff94000098459 R12: 0000000000000000
R13: 0000000000001000 R14: ffff888047dfd2b8 R15: 0000000000001000
FS:  00007f19639126c0(0000) GS:ffff88808ca5b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4b7221f000 CR3: 0000000042caf000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 folio_alloc_buffers+0x39f/0x640 fs/buffer.c:944
 grow_dev_folio fs/buffer.c:1073 [inline]
 grow_buffers fs/buffer.c:1114 [inline]
 __getblk_slow fs/buffer.c:1132 [inline]
 bdev_getblk+0x2cb/0x6e0 fs/buffer.c:1459
 __bread_gfp+0x89/0x3b0 fs/buffer.c:1513
 sb_bread include/linux/buffer_head.h:346 [inline]
 bfs_fill_super+0x1a2/0xeb0 fs/bfs/inode.c:347
 get_tree_bdev_flags+0x431/0x4f0 fs/super.c:1694
 vfs_get_tree+0x92/0x2a0 fs/super.c:1754
 fc_mount fs/namespace.c:1193 [inline]
 do_new_mount_fc fs/namespace.c:3760 [inline]
 do_new_mount+0x341/0xd30 fs/namespace.c:3836
 do_mount fs/namespace.c:4159 [inline]
 __do_sys_mount fs/namespace.c:4348 [inline]
 __se_sys_mount+0x31d/0x420 fs/namespace.c:4325
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f196299c629
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f1963912028 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f1962c15fa0 RCX: 00007f196299c629
RDX: 0000200000000040 RSI: 0000200000000080 RDI: 0000200000000000
RBP: 00007f1962a32b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000010 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f1962c16038 R14: 00007f1962c15fa0 R15: 00007fff5b6fdb88
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:folio_set_bh+0x1dc/0x1e0 fs/buffer.c:1580
Code: 4c 89 e2 e8 a6 bb 94 02 e9 42 ff ff ff e8 dc 3b 6e ff 48 89 df 48 c7 c6 a0 dd de 8b e8 9d b8 d0 fe 90 0f 0b e8 c5 3b 6e ff 90 <0f> 0b 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f
RSP: 0018:ffffc9000dca7938 EFLAGS: 00010293
RAX: ffffffff8257606b RBX: ffffea00004c22c0 RCX: ffff88803789a480
RDX: 0000000000000000 RSI: 0000000000001000 RDI: 0000000000001000
RBP: dffffc0000000000 R08: ffffea00004c22c7 R09: 1ffffd4000098458
R10: dffffc0000000000 R11: fffff94000098459 R12: 0000000000000000
R13: 0000000000001000 R14: ffff888047dfd2b8 R15: 0000000000001000
FS:  00007f19639126c0(0000) GS:ffff88808ca5b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4b723b5665 CR3: 0000000042caf000 CR4: 0000000000352ef0